/Engine/Source/Runtime/Engine/Public/HLSLTree/HLSLTree.h
Marks the given field as requested, based on the input request type (which should match the field type)
void SetFieldRequested ( const [Shader::FStructField](API\Runtime\Engine\Shader\FStructField) * Field, const [FRequestedType](API\Runtime\Engine\HLSLTree\FRequestedType) & InRequest )